With the mesh type shown in the pics your are going to loose about 50 percent of the total air flowing through the radiator......
Be carefull and do a test run under hot weather conditions with and then without the mesh and compare water temperature.
I tried this type of mesh first time in 89 and found out that under highway conditions the car run hot.
Today i'm going with a weldet mesh like the original shaker screen used by the shelby team in the 60s.
Mesh size is 10mm to 10mm made from 1mm wire.
Never had temperatur problems again.
Westcott